#2 remote server returned an unexpected response (417) expectation failed onvif

[Tushar Gupta]

I am working on developing a sample application on onvif device(sony SNC CH110). the applcation is supposed to connect to the device and return in specifications like firmware version,serial number,harware id etc...but it returns an exception "remote server returned an unexpected response (417) expectation failed onvif". What should i do to eliminate this exception.
i have refered the axis workshop program for this. Please help asap.